If you have invited a team member to be a new user, you will need to set up their Security Group too. You can see how to do this below
Adding to an existing group: go to Security -> Security Groups
Click Unassigned or the group the team member is currently in -> Drag and drop the team member into their new group
Creating a new group: go to Security -> Security Groups -> Create new security group
Click the new group -> On the right hand side, you can relabel this group so you know what it is ie Managers, or Phone Access
Go down the list of permissions and select Allow for the permissions you want this security group to have
Click Unassigned or the group the team member is currently in -> Drag and drop the team member into their new group
